The Upper Mustang trek can also be called a peek into the hidden world of Buddhist kingdom of Mustang, also called Lo. Lo used to be a part of the Tibetan empire, and is therefore very closely related to Tibet; not only the culture, also the landscape is very much related to Tibet. Surrounded by rocks in all kinds of colors and bizarre formations, Mustang is mostly a barren landscape where the villages with their bright colored fields are like Oasis in the deserts. Mustang lies in the shadow of the Dhaulagiri region and is a complete desolate landscape. The culture of the people living there is one of the major attractions for tourists and visitors alike.